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Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1974 1
1980 2
1981 1
1983 1
1985 2
1986 2
1987 3
1988 2
1989 1
1990 4
1991 4
1992 7
1993 5
1994 9
1995 5
1996 4
1997 14
1998 11
1999 5
2000 13
2001 10
2002 12
2003 19
2004 28
2005 34
2006 19
2007 25
2008 28
2009 29
2010 43
2011 38
2012 37
2013 40
2014 38
2015 30
2016 25
2017 21
2018 20
2019 20
2020 2
Text availability
Article attribute
Article type
Publication date

Search Results

547 results
Results by year
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